DIY Solar Panels How to Solder the solar cells part 4 Solar Cell Mounting for PV photovoltaic

Tabbing solar cells for DIY Solar Panels requires an encapsulation method for solar cell protection. This step works well for resins that are less expensive and do not tolerate extensive UV exposure. The tape filters the UV and also locks the cells in place. There are several UV resistant Duct Tapes and other power adhesive tapes on the market. I like standard White Strapping Tape





  • Sillicone for a buck? try 8$ for waterproof sillicone tube. you may have only squeezed a buck but that tube's more than a buck. also to solve the snagging problem you can make a knot in the wire on the inside. your way might be better to not compromise the seal.

  • the blocking diode reduces one cell

  • How much watts volts and amps is each cell there?

  • Putting down some cross supports on top of the cells inside the frame and applying a small force on them and then casting the void areas would prevent the cells from lifting. You could just cast the supports in place. It would add weight but also rigidity. Just an idea. Your the guy getting it done. I'm just an observer.

  • Just a thought, try adding a strain relief to the wire before it exits the panel, even just a knot in the wire will keep it from pulling off the solder if it is pulled. I used mc5 connectors on mine to make it easier to tie them together and to be more modular.
    I also would always paint all sides of the bare wood prior to assembling the glass in it to add durability and stabilize the wood frame more, or you can use aluminum as the frame material instead of wood.

  • how did u connected the cells with each other and how did the whole shhets are soldered with the connection wiere? thanks

  • When you are soldering, the solder should flow. You are making pasty solder connections that may have higher resistance or possibly fail.

  • its cool to create your solar panel from scratch… it will give you the best feeling of satisfaction when it work…. I just got that feeling after everything is working great!

  • all of you are able to find more about solar panels and cells here after you sing up : aboutsolarcells.comxa. com OR take a look and sing up to Nikola Tesla : freeenergygeneration.pixub. com When I bought Nikola Tesla Secret, I did not actually believe that it was so simple. The must assembled all the essential materials and it took me about three hours to assemble. The diagrams were not difficult to comprehend although an expert in engineering am not me. To my surprise, the apparatus worked! It's a genuinely nice feeling.

  • So.. how do I know how to select the best schottke diode? Lets say I'm using a different size panel.. what's the formula? Thanks for the awesome videos.

  • You need to do a little research on how to solder correctly.

  • Why are these so much fun to watch? Ill probably never do this lol

  • You need to prevent oxygen from degrading the solar cells. If you don't seal the cells from the elements by encapsulating or other means, they will not work well for long.

  • You guys are awesome!! TY!!

  • What I like about this video is it not only shows you how to asemble the panel he tells you all of the pitfalls that can happen while putting the panel together.

  • Just curious, since I'm learning all this for the first time… What is the purpose/benefit of encapsulating the cells rather than just using a thin board, for example, to hold the cells in the frame? I mean, the cells seemed to work in your earlier video when you tested them, so it can't be about functionality. Or can it?

  • Great video! Is there a part 5?

  • instead of using zip tie and screws, just make a knot on the inside end of the cable. It won't go through the hole

  • I tried this idea, but it failed. I live in Arizona where we have extreme sunshine and heat. In my opinion, it failed because a small pocket of air between the glass and solar cell is trapped inside when the tape prevents epoxy from front encapsulating cells. This air will expand when heated by sunshine, creating very high pressures inside, and eventually forces the epoxy to crack and detach from the glass.

  • I mean just the Scotchshield® SCLARL 150 and nothing else, no epoxi resin over it. I did not try it but if it works is simpler thar mixin resin, pouring, dealing with drips

  • Hello, what do you think about using Scotchshield® SCLARL 150 to seal the cells to the glass instead of using a lot of tape?

  • Now that it has been a year, have you remeasured output? How does it look one year later?

  • Roughly 70 Watts peak, I later discovered my tester was giving me bad AMP readings. The real readings are 3.3A @ 20.9V. Amps times Voltage will give you watts (in this case 68.9 Watts). the panel has a total of 39 pieces of 3×6 inches.cells with 1 inch spacing between each column to aid in heat dissipation. It makes the glass covered area 22 inches wide by 120 inches tall. These cells were bought at ebay and were rated at 1.8Wp so they are working well.

  • how many watts is that and are those dimensions in meters or feet? Thanks

  • I was wondering if you have a video that shows how to connect to like the main power supply to my home

  • i love how real this guy is…haha, that's great. making mistakes all over the place – and that's totally fine to just leave in the video to show people that shit happens and help keep us from making the mistakes.

  • Learned additional tips and tricks to be ready for the next DIY task.

  • Tie knot to the wire while its inside the frame before soldering. That way wire wont stretch as knot wont let that happen.

  • Hey Dan, thanks for the tip, I'll add a layer of fiberglass cloth to the mix to make it stronger yet flexible. So far so good, I made a 3 x 13 solar panel wich is producing 20.9V and 5.5Amps. I tought about using EVA, but it is costly to have it ordered because I live in the Dominican Republic. So I will experiment by completely covering the cells with transparent tape, then I will add a layer of fiberglass. What do you think of this approach? is it worth trying?

  • im sorry dan if its a stupid qustion but why not just use 2 glass panel one rear one front seal in between withe silicon and maybe even vacum air between glass for an air tight seal? resin is expensive and messy to use…

  • Possibly, just make sure the resin has limited UV exposure, white tape. Also do not over do it with the MEK as the endothermic reaction of hardening can create a lot of heat and stress the cells. I usually do not like fiberglass for application, thin fiberglass with no cloth structure cracks and gets weird when heated. solar eva sheets are a good cheap option.

  • Hey Dan, I'm about to do this kind of encapsulation with my solar cells, but I will be using regular fiberglass resin in order to lower the cost. I have waterproofed my wood frame and painted it white. I'm gonna use RTV silicon as an additional sealant. Do you think fiberglass resin could do the trick?

  • Hey Dan! I really appreciate your channel, you've already taught me a ton!
    I'm quite interested in constructing my own solar panels, and eventually be able to sell them. I don't have a job, cause of my inability to work- longer story, so I'm thinking of this as a possibility for me to have a small income source, plus having fun actually working.
    But after I read this "article" I became sceptical..
    Please (dis)approve:
    solarelectricityhandbook . com/Solar-Articles/build-your-own-solar-panels.html

  • @PhantomAct do you really feel bad for stealing from the banks who put hard working people on the street?

  • what if you used eva on the negative side against glass then used epoxy on the back to eliminate air gaps under cells?

  • How to thin encapsuiant; lower and increas viscoty; what type of thiner to use??

  • shartne,
    Tempered glass is a good idea. You can often salvage it out of old storm doors. I have beaten on it with a hammer without breaking it.
    Suggestion about the two holes: drill them before you put the cells in the wooden frame.

  • I think most residental users are paying top retail rates. IN my state the utility bill makes it'sdifficult for the residental user to figure out his bill /KILLOW WATT HOUR RATE. My utility company will not send me a brake down of my bill. why?Each KWH you produce is one less KWH you payfor at full retail rate.

  • I make my panels out of aluminum and tempered glass sealing the cells in with liquid silicone. My panels should last longer than 30 years. Check out my channel I show you everything.

  • Tie your wire into a knot on the inside of the wood to act as a strain relief.

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